351622666 has 16 divisors (see below), whose sum is σ = 559392768. Its totient is φ = 165409200.

The previous prime is 351622657. The next prime is 351622681. The reversal of 351622666 is 666226153.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59850 + ... + 65461.

It is an arithmetic number, because the mean of its divisors is an integer number (34962048).

Almost surely, 2^351622666 is an apocalyptic number.

351622666 is a deficient number, since it is larger than the sum of its proper divisors (207770102).

351622666 is a wasteful number, since it uses less digits than its factorization.

351622666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125397.

The product of its digits is 77760, while the sum is 37.

The square root of 351622666 is about 18751.6043580276. The cubic root of 351622666 is about 705.8172813188.

It can be divided in two parts, 35 and 1622666, that added together give a triangular number (1622701 = T₁₈₀₁).

The spelling of 351622666 in words is "three hundred fifty-one million, six hundred twenty-two thousand, six hundred sixty-six".